One surely controversial change is that entries are now editable by default. The most common complaint by new users was about the extra step needed to actually change anything. For those who prefer it that way (e.g. me), option to have entries in read-only mode until Edit button is pressed is still there in Options dialog.
Additionally, some minor bug fixes and interface adjustments were made but nothing to write home about. :)
PS: Windows Store version doesn't allow for credit-card information storage due to Microsoft's policies.